Why you can’t hear your interlocutor when calling Xiaomi: 12 reasons and solutions

You call Xiaomi and suddenly realize you can't hear the person you're talking to -- is the sound completely missing or distorted beyond recognition? This problem is more common on the brand's devices than you think. It can be caused by software failures of MIUI, as well as hardware malfunctions, from a clogged speaker to a damaged plume. In this article, we'll look at all possible scenarios, including rare cases that are not covered in standard instructions.

It's important to understand that if you have a problem after a phone falls, moisture gets in, or disassembles yourself, it's likely that you're physically damaged to an audio track or an antenna connector. Otherwise, software is the culprit, especially after you update MIUI or install third-party apps, and we've put together proven solutions that can bring sound back without going to the service center.

1. Checking basic sound settings

Before digging deeper, make sure the problem isn’t in the trivial settings. On Xiaomi, call sound is regulated separately from media and notifications, and sometimes users accidentally turn down the volume just for calls.

Open the swipe quick settings panel from top to bottom and check the volume slider - it should be in Call mode (tube icon). If the slider is at zero, raise it to the middle. Also look at Settings → Sound and Vibration → Volume and make sure that there is no No Sound or Vibration mode activated.

• 🔊 The volume of the call at a minimum - increase to 70-80% test-drill.
• 📵 Do not disturb mode – turn off in the notification panel or in Settings → Special opportunities.
• 🎧 Connected headphones -- even if you're not using them, the system can "think" that sound should go through them. Turn off Bluetooth and check for a 3.5mm connector (if there's one).

⚠️ Note: Some Xiaomi models (e.g. Redmi Note 10 Pro) POCO X3 Pro) after connecting Bluetooth headphones, the sound of calls can be automatically redirected to them, even if the headset is turned off.Reboot the phone to reset this bug.

2. Software failures: MIUI, applications and cache

MIUI's shell is known for its "surprises" after updates. If a sound problem appeared immediately after installing a new firmware version, the culprit was probably a system services failure. The first thing to do is clear the cache of the Phone app and telephony services.

Go to Settings → Applications → Application Management, find Phone and select Storage → Clear Cache. Then repeat the same for Telephony Service (may be called com.android.phone). If that doesn't help, try resetting your network settings:

Settings → SIM- Maps and Mobile Networks → Network Resetting → Reset settings

• 📱 Network reset – removes stored Wi-Fi points and mobile settings, but often solves sound problems.
• 🔄 Restart in Safe Mode – if sound appears, the third-party app is to blame (remove the last installed one).
• 🛠️ Related: Retreat of the update MIUI — If the problem started after the update, try rolling back through Settings. → The phone. → Updating the system → Three points. → Select the update package (you need old firmware).

If you use Google Phone instead of the standard call app, try temporarily switching to Xiaomi's native app. Sometimes a conflict between two dialers leads to sound loss.

Hardware problems: speaker, microphone and plumes

If the software methods didn't work, it's time to look at the physical malfunctions.

1. Talking speaker – clogged with dust or fails after falls.
2. Audio module plume – oxidized or departs from the board (typical for Redmi 4X, Redmi 5).
3. Antenna connector – if the phone fell, the contact could be broken, leading to communication breakdowns.
4. The microphone may not hear you, but you may hear him (or vice versa).

Do a quick diagnosis:

⚠️ Warning: If your phone falls or gets wet, don’t try to disassemble it yourself – Xiaomi uses adhesive plumes that are easy to damage. 80% of the time after home repairs, the problem gets worse (for example, not only the sound, but also the network disappears).

To check the speaker, call another phone and turn on speakerphone. If there's sound, there's a problem with the speaker. If there's no, there's a possible faulty audio codec.

4.Problems with SIM-map-and-net

The quality of the communication directly affects the sound during the call. If the interlocutor "breaks", interrupts or is not heard at all, the problem may be on the operator's side or on the operator's side. SIM-This is especially evident on Xiaomi because of the features of the Qualcomm communication module (in models on Snapdragon) or MediaTek.

First, check:

• 📶 Signal level – if it is weak (1-2 Divide, try to switch to 3G instead 4G/5G In Settings → SIM-maps and mobile networks → Preferred type of network.
• 🔄 Reboot modem – enter in dial ##4636##, select Phone Information and click Turn off the radio (after 10 seconds, turn back on).
• 🪪 SIM-Remove the card, clean the contacts with a pin and insert it back. If the card is old (over 5 years old), replace it in the operator's cabin.

If the problem arises only with one SIM-On a card (on dual-sim models), try swapping slots. On some Xiaomi (for example, Redmi Note 9 Pro), the second slot may perform worse due to hardware limitations.

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If you often lose the network in the subway or elevators, turn on in the settings SIM-Cards option Improved mode 4G (If you have one, it will help stabilize the connection.

5. Conflicts with applications and rights

Third-party applications, especially those that request access to a microphone or telephony, can block sound while calling.

• 🎵 Call recording applications (such as Cube Call Recorder or ACR).
• 🔒 Antiviruses and optimizers (e.g. Clean Master, 360 Security).
• 📞 Alternative dialers (e.g. Truecaller, Drupe).
• 🎮 Gaming accelerators (e.g. Game Turbo) MIUI).

To find the problem application:

1. Go to Settings → Applications → Permissions → Microphone and turn off access for all suspicious programs.
2. Then check Settings → Applications → Special Access → Battery Optimization and remove restrictions for system applications (e.g. Phone, Telephony Services).
3. If the problem persists, remove the last installed apps one by one, testing the sound after each removal.

On some firmware, MIUI (especially custom ones) can trigger an audio policy bug, where the system forgets where to direct the sound, in which case resetting all settings to factory (but not a complete reset!) helps:

Settings → System and device → Additional → Resetting settings → Resetting application settings

6. Updates, firmware and custom ROMs

If you’ve installed custom firmware (like LineageOS, Pixel Experience) or rooted your phone, the sound problem may be related to:

• 📦 Absent audio drivers – some custom ROM Does not include proprietary drivers for Xiaomi.
• 🔧 Incorrect build.prop settings – if you edited this file, check the ro.audio.flinger settings.
• 🔄 Core conflicts – for example, after installing a custom core such as FrancoKernel.

For diagnosis:

1. Make sure the firmware supports your model (check out the XDA Developers or 4PDA forum).
2. If the sound is lost after firmware, try returning the stock MIUI via Fastboot:

fastboot flash boot boot.img


fastboot flash system system.img




fastboot flash vendor vendor.img




fastboot reboot

If you are not sure about your actions, it is better to contact an experienced "swimmer" - improper manipulation of the Fastboot can turn the phone into a "brick".

⚠️ Note: Some Xiaomi models (e.g. Mi) A2, Mi A3) post-stitch ROM The problem is that you lose sound in the dynamics because you don't have any proprietary libqti-peripheral libraries. TWRP.

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If the sound problem has occurred after the MIUI update, try clearing the cache through Recovery first (press Power + Volume up when turned on).

7. Recovery through service codes and engineering menu

Xiaomi has hidden service menus that help diagnose audio problems, and type these codes into a standard dialer:

• ##4636## → Phone information → Check Audio and Network Status.
• #36446337## - Test equipment (on some models)
• #06## - IMEI check (if it's "broken," there may be communication issues).

In the engineering menu (#4636##) note:

• Audio → Volume – If the Voice Call slider is at zero, pick it up.
• Battery Information → Battery Health – if the battery is severely worn out (over 80%), it can affect the stability of the communication module.
• Usage Statistics → Running – check if the com.android.phone process is in the ANR state (not responding).

If it's on the menu ##36446337## Speaker test (Speaker Test) is successful, but there is no sound when calling - the problem is precisely software (for example, a failure in the phone). audio_policy.conf).

8.When to contact the service center

If none of the methods worked, it's probably hardware.

• 💧 The phone fell into the water or was exposed to severe humidity (even if everything is dry on the outside).
• 🔨 You took your phone apart and could have damaged the plumes.
• 🔊 The sound is lost only when the body is pressed (this indicates a passing contact).
• 📡 The problem is accompanied by loss of network or overheating (the communication chip may be faulty).

The cost of repair in official Xiaomi services:

Before visiting the service, make a backup copy of the data - some malfunctions require a complete reset or flashing.

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If the phone is warranty, do not think to disassemble it yourself! Xiaomi will cancel the warranty in case of violation of seals.

FAQ: Frequent questions